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Related papers: A Validated Low-to-Intermediate Mass Planetary Int…

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The relationship between mass and radius (M-R relation) is the key for inferring the planetary compositions and thus valuable for the studies of formation and migration models. However, the M-R relation alone is not enough for planetary…

Earth and Planetary Astrophysics · Physics 2021-06-03 Qi Ma , Sujit K Ghosh

To date, no accretion model has succeeded in reproducing all observed constraints in the inner Solar System. These constraints include 1) the orbits, in particular the small eccentricities, and 2) the masses of the terrestrial planets --…

Earth and Planetary Astrophysics · Physics 2015-05-13 Sean N. Raymond , David P. O'Brien , Alessandro Morbidelli , Nathan A. Kaib

Modeling the interior of a rocky or water-rich exoplanet is a thermodynamic closure problem: every layer's density, temperature gradient, and phase must follow from an equation of state (EoS) that remains self-consistent across the…

Earth and Planetary Astrophysics · Physics 2026-05-06 Mara Attia , Tim Lichtenberg , Ema Jungová , Mariana Sastre

Constraining the planetary composition is essential for exoplanetary characterization. In this paper, we use a statistical analysis to determine the characteristic maximum (threshold) radii for various compositions for exoplanets with…

Earth and Planetary Astrophysics · Physics 2018-10-17 Michael Lozovsky , Ravit Helled , Caroline Dorn , Julia Venturini

Sub-Neptunes occupy an intriguing region of planetary mass-radius space, where theoretical models of interior structure predict that they could be water-rich, where water is in steam and supercritical state. Such planets are expected to…

Earth and Planetary Astrophysics · Physics 2025-12-05 Artyom Aguichine , Natalie Batalha , Jonathan J. Fortney , Nadine Nettelmann , James E. Owen , Eliza M. -R. Kempton

Newly-formed planetary systems with ages of <10 Myr offer many unique insights into the formation, evolution, and fundamental properties of extrasolar planets. These planets have fallen beyond the limits of past surveys, but as we enter the…

Earth and Planetary Astrophysics · Physics 2009-02-19 Adam L. Kraus , Kevin Covey , Michael Liu , Stanimir Metchev , Russel White , Lisa Prato , Doug Lin , Mark Marley

Interior characterization traditionally relies on individual planetary properties, ignoring correlations between different planets of the same system. For multi-planetary systems, planetary data are generally correlated. This is because,…

Earth and Planetary Astrophysics · Physics 2018-10-10 Caroline Dorn , Klaus Mosegaard , Simon L Grimm , Yann Alibert

We have computed evolutionary models for extrasolar planets which range in mass from 0.1 to 3.0 Jovian Masses, and which range in equilibrium temperature from 113 K to 2000 K. We present four sequences of models, designed to show the…

Astrophysics · Physics 2010-04-06 P. Bodenheimer , G. Laughlin , D. N. C. Lin

The planets within compact multi-planet systems tend to have similar sizes, masses, and orbital period ratios, like "peas in a pod". This pattern was detected when considering planets with radii between 1 and 4 $R_\oplus$. However, these…

Earth and Planetary Astrophysics · Physics 2021-10-27 Sarah C. Millholland , Joshua N. Winn

In this review, we summarize our present knowledge of the behaviour of the mass-radius relationship from solar-type stars down to terrestrial planets, across the regime of substellar objects, brown dwarfs and giant planets. Particular…

Astrophysics · Physics 2009-11-13 G. Chabrier , I. Baraffe , J. Leconte , J. Gallardo , T. barman

Exoplanet discoveries of recent years have provided a great deal of new data for studying the bulk compositions of giant planets. Here we identify 47 transiting giant planets ($20 M_\oplus < M < 20 M_{\mathrm{J}}$) whose stellar insolation…

Earth and Planetary Astrophysics · Physics 2016-11-08 Daniel P. Thorngren , Jonathan J. Fortney , Ruth A. Murray-Clay , Eric D. Lopez

The core-accretion and disk instability models have so far been used to explain planetary formation. These models have different conditions, such as planet mass, disk mass, and metallicity for formation of gas giants. The core-accretion…

Astrophysics · Physics 2011-02-11 T. Matsuo , H. Shibai , T. Ootsubo , M. Tamura

Structures were calculated for Mercury, Venus, Earth, the Moon, and Mars, using a core-mantle model and adjusting the core radius to reproduce the observed mass and diameter of each body. Structures were calculated using Fe and basalt…

Earth and Planetary Astrophysics · Physics 2009-08-25 Damian C. Swift

The Kepler Mission has found thousands of planetary candidates with radii between 1 and 4 R$_\oplus$. These planets have no analogues in our own Solar System, providing an unprecedented opportunity to understand the range and distribution…

Earth and Planetary Astrophysics · Physics 2015-06-25 Angie Wolfgang , Eric Lopez

The rich diversity of multi-planetary systems and their architectures is greatly contrasted by the uniformity exhibited within many of these systems. Previous studies have shown that compact Kepler systems tend to exhibit a peas-in-a-pod…

Earth and Planetary Astrophysics · Physics 2024-12-10 Alexandra Muresan , Carina Persson , Malcolm Fridlund

A successful solar system model must reproduce the four terrestrial planets. Here, we focus on 1) the likelihood of forming Mercury and the four terrestrial planets in the same system (a 4-P system); 2) the orbital properties and masses of…

Earth and Planetary Astrophysics · Physics 2020-06-17 Patryk Sofia Lykawka

In order to test planetary accretion and differentiation scenarios, we integrated a multistage core-mantle differentiation model with N-body accretion simulations. Impacts between embryos and planetesimals result in magma ocean formation…

We present a novel, model-independent framework for studying the architecture of an exoplanetary system at the system level. This framework allows us to characterise, quantify, and classify the architecture of an individual planetary…

Earth and Planetary Astrophysics · Physics 2023-02-15 Lokesh Mishra , Yann Alibert , Stéphane Udry , Christoph Mordasini

M dwarfs are prime targets in the hunt for habitable worlds around other stars. This is due to their abundance as well as their small radii and low masses and temperatures, which facilitate the detection of temperate, rocky planets in orbit…

High-precision planetary densities are key to derive robust atmospheric properties for extrasolar planets. Measuring precise masses is the most challenging part, especially in multi-planetary systems. We measure the masses and densities of…

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